Reenforcing means for the rims of openings in metal containers



Nov. 22, 1932. w, MAUSER 1,888,877

REENFORCING MEANS FOR THE RIMS OF OPENINGS IN METAL CONTAINERS FiledSept. 22. 1950 Patented Nov. 22, 1932 UNITED STATES PATENT OFFICE KARLWILHELM MAUSER, F WALDECK, GERMANY RIEELTFOIRXIIIN'CT MEANS FOR THE RIMSOF OPENINGS IN METAL CONTAINERS Application-filed September 22, 1930,Serial No. 483,632, and in Germany September 27, 1928.

10 opening and closing as well as when the container is being rolledalong the ground. There is thus the risk of the folded seam being openedmore or less considerably and of the collar being thereby twisted, thusrendering it diflicult, if not impossible, to withdraw the stopper orplug.

In order to prevent twisting of the collar in rim openings in which thecollar is secured in a different manner, it has also been proposed toallow the flange of the collar, which initially is of polygonal shape,to engage so as to fit in a flange formed out of the container wall.

The present invention consists ina' combination of the above two knownfeatures, with the result that by imbedding the rim collar in thepreviously drawn flange of the container wall, the folded rib isrelieved of the duty of acting as carrier for the rim collar, so thatopening out of the folded seam by blows or pressure does not occur andthe securing of the rim bush itself can be easily effected and issecure. The invention may also be so carried out that a ring is fittedinto the folded rib which ring has a number of peripheral leading eyesor the like.

The invention is illustrated by way of example in the accompanyingdrawing, which shows an elevation, partly in section, of two 0constructional forms of rim collar securing arrangement.

Referring to Figure 1, a is the collar of the rim opening in thecontainer, for instance a bung hole, with the fold ring 0 provided onthe collar 6. The fold ring is united with a fold ring 7 formed bydrawing it out of the container wall (I to form a simple folded rib. Inthe construction according to Figure 2, a ring 9 provided with leadingeyes g is fitted in with the folded rib.

Vhat I claim is 1. The combination with a sheet metal container havingan opening in a wall thereof, of a collar fitted in the opening, apolygonal shaped peripheral flange on the collar, an uninterrupted foldring on the collar, the container wall having an outwardly extendingflange surrounding the opening and terminating in an uninterrupted foldring adapted to cooperate with the fold ring of the collar to provide aseam connection between the container wall and the collar, the flange ofthe collar extending beyond the outer end of the fold ring carriedthereby and having intimate engagement with the flange-of the containerfor its entire width.

2. Means for bushing openings in metal vessels or containers, includinga bush having an annular ring and a polygonal flange extending beyondthe periphery of said ring, said container having a socket formedtherein adapted to receive the polygonal flange to prevent rotationthereof when inserted, an uninterrupted annular flange on the containerextending from the bottom of said socket so as to encircle the ring onthe bush, said annular flange being folded over the ring and the ringthen folded simultaneously with the flange to overhang the bush tosecure the bush to the container.

In testimony whereof I have signed my name to this specification. a

KARL WILHELM MAUSER.

